Golf club head

Abstract

A head 4 includes a socket 10 and a weight body 12 . The socket 10 has an upper hole part 18 and a lower hole part 20 . The weight body 12 has an engaging part 32 . The lower hole part 20 and the engaging part 32 can be relatively rotated. By the relative rotation, the weight body 12 can take an engaging position EP and non-engaging position NP. The engaging part 32 has an outermost part E1. The lower hole part 20 has a first portion 20 x and a second portion 20 y . The outermost part E1 can pass through the first portion 20 x while compressively deforming the first portion 20 x . A distance D2 between the second portion 20 y and an axis line Z is greater than a distance D1 between the first portion 20 x and the axis line Z.

What is claimed is: 
     
       1. A golf club head comprising a head body, a socket and a weight body, wherein
 the head body includes a socket housing part, 
 the socket is attached to the socket housing part, 
 the socket includes an upper hole part and a lower hole part, 
 a sectional shape of the upper hole part is different from a sectional shape of the lower hole part, 
 the weight body includes an engaging part, 
 the engaging part includes an outermost part which is farthest from a rotation axis line of the weight body, 
 the engaging part is disposed inside the lower hole part, 
 relative rotation can be performed between the lower hole part and the engaging part so that the weight body can take an engaging position and an non-engaging position by the relative rotation, 
 the lower hole part includes a first portion and a second portion, 
 the first portion and the second portion are provided on a passing region of the outermost part, 
 the outermost part passes through the first portion while compressively deforming the first portion in a process of the relative rotation, and 
 when a distance between the first portion and the rotation axis line is defined as D 1 , and a distance between the second portion and the rotation axis line is defined as D 2 , the distance D 2  is greater than the distance D 1  in a same circumferential position. 
 
     
     
       2. The golf club head according to  claim 1 , wherein the second portion includes a non-contact surface which does not contact with the outermost part in the process of the relative rotation. 
     
     
       3. The golf club head according to  claim 1 , wherein the second portion is positioned on a lower side of the first portion. 
     
     
       4. The golf club head according to  claim 1 , wherein
 the weight body includes a first rotation regulating part, 
 the socket includes a second rotation regulating part, 
 non-correct rotations other than the relative rotation are regulated by an engagement of the first rotation regulating part and the second rotation regulating part. 
 
     
     
       5. The golf club head according to  claim 1 , wherein when an axial-directional length of the first portion is defined as S 1 , and an axial-directional length of the outermost part is defined as S 2 , S 1 /S 2  is equal to or greater than 0.3 and equal to or less than 0.9. 
     
     
       6. A golf club head comprising a head body, a socket and a weight body, wherein
 the head body includes a socket housing part, 
 the socket is attached to the socket housing part, 
 the socket includes an upper hole part and a lower hole part, 
 a sectional shape of the upper hole part is different from a sectional shape of the lower hole part, 
 the weight body includes an engaging part, 
 the engaging part includes an outermost part which is farthest from a rotation axis line of the weight body, 
 the engaging part is disposed inside the lower hole part, 
 relative rotation can be performed between the lower hole part and the engaging part so that the weight body can take an engaging position and an non-engaging position by the relative rotation, 
 the lower hole part includes a first portion and a second portion, 
 the first portion includes a compressive deformation part which can be compressively deformed by the outermost part in a process of the relative rotation, 
 the second portion is provided on an upper side or a lower side of the compressive deformation part, and 
 when a distance between the first portion and the rotation axis line is defined as D 1 , and a distance between the second portion and the rotation axis line is defined as D 2 , the distance D 2  is greater than the distance D 1  in a same circumferential position. 
 
     
     
       7. The golf club head according to  claim 6 , wherein the second portion includes a non-contact surface which does not contact with the outermost part in the process of the relative rotation. 
     
     
       8. The golf club head according to  claim 6 , wherein the second portion is positioned on a lower side of the first portion. 
     
     
       9. The golf club head according to  claim 6 , wherein
 the weight body includes a first rotation regulating part, 
 the socket includes a second rotation regulating part, 
 non-correct rotations other than the relative rotation are regulated by an engagement of the first rotation regulating part and the second rotation regulating part. 
 
     
     
       10. The golf club head according to  claim 6 , wherein when an axial-directional length of the first portion is defined as S 1 , and an axial-directional length of the outermost part is defined as S 2 , S 1 /S 2  is equal to or greater than 0.3 and equal to or less than 0.9.